NEIEP 800 final review questions with correct answers

The total weight of your elevator (force) is 8100 lbs. and its plunger area is 50 square inches. What is the system pressure? CORRECT ANSWER 162 psi Refer to the NEIEP Moving Walk Final Layout. What is the correct wellway-to-wellway distance? CORRECT ANSWER 134' 11" Electrolysis is caused by which of the following? CORRECT ANSWER Stray current corrosion and Galvanic corrosion BOTH ARE CORRECT When using wire rope, the diameter of the sheaves must be how many times the diameter of the suspension ropes? CORRECT ANSWER 30 Wye-Delta starting is used for which of the following? CORRECT ANSWER Reduced current starting You need the area of the plunger to calculate the pressure of the hydraulic system. Your plunger is 8 inches in diameter. What is it's area? CORRECT ANSWER 50.27 square inches Which of the following provides mechanical interlocking of contactors? CORRECT ANSWER Interlock contacts